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/*
* Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
* ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
* DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed or intended for use
* in the design, construction, operation or maintenance of any nuclear
* facility.
*
* Sun gratefully acknowledges that this software was originally authored
* and developed by Kenneth Bradley Russell and Christopher John Kline.
*/
package com.sun.opengl.impl.windows;
import javax.media.opengl.*;
import com.sun.opengl.impl.*;
public class WindowsDummyGLDrawable extends WindowsGLDrawable {
private long hwnd;
public WindowsDummyGLDrawable() {
super(null, new GLCapabilities(), null);
// All entries to CreateDummyWindow must synchronize on one object
// to avoid accidentally registering the dummy window class twice
synchronized (WindowsDummyGLDrawable.class) {
hwnd = WGL.CreateDummyWindow(0, 0, 1, 1);
}
hdc = WGL.GetDC(hwnd);
// Choose a (hopefully hardware-accelerated) OpenGL pixel format for this device context
GLCapabilities caps = new GLCapabilities();
caps.setDepthBits(16);
PIXELFORMATDESCRIPTOR pfd = glCapabilities2PFD(caps, true);
int pixelFormat = WGL.ChoosePixelFormat(hdc, pfd);
if ((pixelFormat == 0) ||
(!WGL.SetPixelFormat(hdc, pixelFormat, pfd))) {
destroy();
}
}
public void setSize(int width, int height) {
}
public int getWidth() {
return 1;
}
public int getHeight() {
return 1;
}
public GLContext createContext(GLContext shareWith) {
if (hdc == 0) {
// Construction failed
return null;
}
return new WindowsGLContext(this, shareWith);
}
public void destroy() {
if (hdc != 0) {
WGL.ReleaseDC(hwnd, hdc);
hdc = 0;
}
if (hwnd != 0) {
WGL.ShowWindow(hwnd, WGL.SW_HIDE);
WGL.DestroyWindow(hwnd);
hwnd = 0;
}
}
}
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